题目内容：

根据下列短文内容，在短文的空格处填入一个恰当的词，使短文完整、通顺。

As the saying goes, "Health is happiness." It's important for us to1.healthy. A healthy lifestyle can help us to study2.. Here are some ways that can help you.

3., it's very important for us to keep a balanced diet. We should have different kinds of foods, such as rice, bread, meat, fish, eggs, milk, fruit, and vegetables. Maybe we like junk food very much,4., we can't eat it too much. We can eat it two or three times a month.

Second, good sleeping habits are also good for our body. We need enough sleep. Sleeping very late is5.for the body, so we should go to bed early and get up early. We should sleep6.least eight hours every night.

At last, we should7.to keep in good health. Exercise is a great way to get a healthier and stronger body. It can also be a great8.to relax and make you happier. It's best to take exercise for one hour every day.

I hope everybody is healthy, and all of us can get good grades in the tests.